CN217052604U

CN217052604U - Knitting cam for flat knitting machine and flat knitting machine

Info

Publication number: CN217052604U
Application number: CN202122599338.1U
Authority: CN
Inventors: 格哈德·格茨
Original assignee: Carlmeyerstol R & D Co ltd
Current assignee: Carlmeyerstol R & D Co ltd
Priority date: 2021-09-24
Filing date: 2021-10-25
Publication date: 2022-07-26
Anticipated expiration: 2031-10-25
Also published as: DE202021105165U1

Abstract

The utility model relates to a knitting triangle and flat-bed machine for flat-bed machine has needle triangle board piece (101) and selects needle triangle board piece (102), has arranged on this needle triangle board piece and can move between inactive position and active position especially wobbling needle pressing spare (11, 12, 13) and relevant needle pressing spare controller (20), its characterized in that select to be provided with on needle triangle board piece (102) and be used for needle pressing spare (11, 12, 13) needle pressing spare backstop (15), these needle pressing spare lean on this needle pressing spare backstop in active position.

Description

Knitting cam for flat knitting machine and flat knitting machine

Technical Field

The utility model relates to a knitting triangle (Strickschloss) that is used for flat-bed machine to have needle triangle slab and selects needle triangle slab arranges on needle triangle slab and can move between inactive position and active position especially wobbling needle pressing spare and relevant needle pressing spare controller.

Background

In flat knitting machines with knitting cams which work with the jack-cam technique, the stitches or sinker butts must be loaded not only in the direction of movement required for the stitch formation, but also perpendicularly to the plane of the cam plate, the movement being introduced parallel to the plane of the cam plate. This movement is introduced, for example, into stitches and sinker butts by means of so-called stitch cams or simply stitch cams.

The control cams, which cooperate with the presser foot on the side of the cam plate facing the needle bed, introduce the movements required for knitting into the stitches and the sinkers heels.

The presser elements in the knitting cam can be switched (pivoted) from their inactive position into their active position and back by means of a presser control (for example by means of an electromagnet) and by means of, for example, double-sided levers. The extended magnet of the needle retainer control prevents the needle retainer from undesirably swinging back to the inactive position as long as the intermediate slide is not on the needle retainer. The needle presser has the task of pressing against the foot of the intermediate slide in the needle bed during a specific knitting operation. The stitches are then pressed, so that they cannot be held by the triangle.

The intermediate slide foot exerts a counterforce on the needle pressing element. If this force is not acted upon exactly via the turning point of the needle pressing element, a torque is generated. In order that this torque does not cause the presser members to swing back to their inactive position, the active position is designed such that the intermediate slide introduces a torque which causes the presser members to rotate beyond the active position. However, if a large number of intermediate sliders must be pressed simultaneously, it is conceivable for the presser element to be pivoted beyond the active position. In order in this case to prevent the pressers from being able to pivot too far, but to remain in their active position at all times, stops can be provided for the pressers.

It is known, for example from CN 108166145, to introduce a mechanical stop directly into the needle holder control. This presupposes high precision in the manufacture of the needle-pressing controller. With this arrangement, inaccuracies in the position of the needle control in the triangle cannot be compensated for. This problem is exacerbated by the typical use of multiple gusset panels. The position of the middle slide block is determined by a triangle fixed on the needle selecting triangle plate. However, the needle presser control itself is fixed to the needle cam plate.

SUMMERY OF THE UTILITY MODEL

The object of the invention is therefore to provide a weaving cam which avoids the above-mentioned disadvantages.

According to the utility model discloses, this purpose is realized through a knitting triangle that is used for flat-bed machine to have a needle triangle slab and selects needle triangle slab, arranges on needle triangle slab and can move between inactive position and active position especially wobbling tucking tool and relevant tucking tool controller, wherein, is provided with tucking tool backstop that is used for tucking tool on selecting needle triangle slab, and these tucking tools support and lean on tucking tool backstop at the active position. From the above, the knitting cam according to the present invention includes two separate cam plates, i.e., a needle cam plate and a needle selection cam plate.

The needle pressing piece backstop is arranged on the needle selecting triangle plate, so that the needle selecting triangle plate and the needle triangle plate are mechanically separated, and the position inaccuracy of a needle pressing piece controller in a knitting triangle can be compensated. The needle pressing piece is always correctly positioned at the movable position because the needle pressing piece backstop is arranged on the needle selecting triangle plate, so that the support legs of the middle sliding block can always fully press the needle pressing piece as much as possible. Wear can be significantly reduced by this measure.

It is particularly advantageous if a presser bar is provided on the selector cam plate and a presser stop is arranged on the presser bar. If the legs of the intermediate slide are located on the other needle track, these legs can be pressed against the presser bar. The presser bar is normally provided on the selector cam plate. If the needle bar stop is additionally arranged on the needle bar, the needle bar stop can be arranged in a space-saving manner.

The presser foot stop can be designed as a separate component which is fastened to the presser bar. This makes it possible, for example, to replace the plunger stop when worn. The position of the presser foot stop, in particular its distance from the presser bar, can also be adjusted. Tolerances can thereby also be compensated.

However, it is also conceivable for the presser foot stop to be formed integrally with the presser bar. This makes it possible to integrate the presser foot stop into the presser bar.

The presser stop may be formed of the same or different material as the presser bar. For example, the plunger stop may be constructed of a material that is more wear resistant than the plunger strip.

The presser foot stop can be adjusted relative to the needle cam. This ensures that the needle pressers reliably rest against the needle presser stops when they are moved into their active position. Tolerances can be compensated in this way.

The needle pressing piece stop can be adjusted relative to the needle selection triangle plate. In this case, either the entire presser bar can be adjusted relative to the selector cam plate or the presser stop can be adjusted relative to the presser bar. This allows the plunger stop to be positioned precisely.

The needle stop can be designed in one piece or in multiple pieces. If it is designed in a multi-component manner, tolerances between the individual pin pressing elements can be compensated.

The needle stop may have a flat or convex surface. In a convex design, a line contact is ensured that does not abut on the edge, which means less wear.

On the needle cam plate, cams for needle pushing, needle withdrawing, tucking and/or stitch transferring may be provided. The cams of the needle cam plate can thus be used to introduce a movement into the knitting needles for the knitting operation.

The needle selecting cam plate may be provided with a member for needle selection. The knitting needles can be activated or deactivated by means of a component for selecting the needles. It is thereby possible to select those needles that will take part in the knitting process.

The plunger control may have an electromagnet and lever arm and a return spring. This allows the needle-pressing element to be reliably displaced or switched between its active and inactive positions.

Have the basis the utility model discloses a flat-bed machine who weaves triangle also falls into the scope of the utility model.

Further features and advantages of the invention emerge from the following detailed description of an embodiment of the invention, with reference to the drawing and from the claims, which show details that are important for the invention. The features shown there are not necessarily to be understood as dimensionally precise, but rather as being described in such a way that the particularity of the invention is clearly evident. In variants of the invention, the various features can be shown individually or in any combination of a plurality.

Drawings

Embodiments of the present invention are illustrated in the schematic drawings and are described in detail in the following description.

Fig. 1 is a plan view of a knitting cam.

FIG. 2 is a cross-sectional view of the knitting cam and needle bed;

FIG. 3 illustrates a needle depressing member controller;

fig. 4 shows the needle bar with the stop.

Detailed Description

Fig. 1 shows a knitting cam 100 which can be moved in the double arrow direction LR, i.e. in the carriage direction. The knitting cam 100 has cams 10 which are necessary for needle raising, needle retracting, stitch forming, tuck forming and/or stitch transferring. These cams are arranged on the needle cam plate 101. A needle selection cam plate 102 is provided below the needle cam plate 101, and a needle selection member 40, not shown in detail here, is provided on the needle selection cam plate. Below the cam 10 of the knitting system, switchable cams in the form of

needle pressers

11, 12, 13 are provided, which can act (press) on the legs of an intermediate slide, not shown here.

A presser bar 14 is arranged below the

switchable presser members

11, 12, 13. The presser bar 14 is arranged on the selector cam plate 102. The presser bar 14 also serves to press the legs of the intermediate slider into the needle bed.

On the presser bar 14, a presser bar stop 15 is provided, which is designed as a stop surface and defines the maximum pivoting position of the presser bars 11, 12, 13 in their active position. By positioning the

presser members

11, 12, 13 and their control devices, which will be described later, as well as the presser stop on the

different gusset plates

101, 102, their distance from each other can be set precisely. This may reduce wear of the components. In addition, reliable function can be ensured.

As can be seen from fig. 1, the needle presser stopper 15 is provided at an end of the selector cam plate 102 facing the needle cam plate 101. Accordingly, the

presser members

11, 12, 13 are provided at an end of the needle cam piece 101 facing the selector cam piece 102. The presser pins 11, 12, 13 and the presser pin stop 15 are therefore arranged close to one another, but on

different gusset plates

101, 102. The stop surface of the presser foot stop 15 points in the direction of the needle cam plate 101.

FIG. 2 shows a cross-sectional view of the knitting cam 100 and the needle bed 110. The needle cam plate 101 and the selector cam plate 102 can be seen. The

presser members

11, 12, 13 and their presser control unit, which will be described later, are mounted on the needle cam plate 101. On the selector cam plate 102, a presser bar 14 is mounted with a presser stop 15 arranged thereon. The presser foot stops 15 define the maximum pivoting position of the

presser foot

11, 12, 13 in their active position, i.e. in their end position.

Also visible is an intermediate slide 16, which is guided in the needle bed 110 and has a foot 17. In the example shown, all the

presser members

11, 12, 13 are in their active position, so that the legs 17 of the intermediate slider 16 are in contact with the bottom surfaces of the

presser members

11, 12, 13. This causes the intermediate slide 16 to be pressed into the needle bed 110. It can be seen that the legs 17 rest over the entire surface on the

presser members

11, 12, 13. In particular, the intermediate slide and its foot 17 are not arranged offset to the right or to the left with respect to the

needle pressers

11, 12, 13. Thereby wear can be reduced. If the foot 17 is located in another needle path, it can be pressed into the needle bed 110, for example, by the presser bar 14.

Fig. 3 shows the needle depressing control 20 in a perspective view. The presser control unit 20 has

electromagnets

21, 22, 23 which interact with

lever arms

24, 25, 26 for controlling the

pressers

11, 12, 13. The presser control 20 is provided on the needle cam plate 101, and the presser bar 14 also shown in fig. 3 is provided on the selector cam plate 102. In fig. 3, the presser bar stop 15 can be seen as a component integrated into the presser bar 14. The presser foot stop 15 faces the

presser foot

11, 12, 13. In the illustrated view, the

presser members

11, 12 are in the active position, while the presser member 13 is in the inactive position.

The

electromagnets

21, 22, 23 can load the horizontal lever arms 24', 25', 26' by means of pins, not shown here, against the force of springs, not shown here. The pivoting movement is introduced into the

presser members

11, 12, 13 via the pivot axis 27, whereby these can be brought from their inactive position into their active position. The presser foot stop 15 limits the maximum travel that the

presser foot

11, 12, 13 can travel.

In the inactive position, the

presser foot

11, 12, 13 cannot load the foot 17 of the intermediate slide 16. When these needle pressers are pivoted into the active position, the legs of the intermediate slide 16 are guided along the contact surfaces of the

needle pressers

11, 12, 13, whereby the intermediate slide 16 is pressed into the needle bed 110.

Fig. 4 shows the needle blade 14. Here, it can be seen that a presser bar stop 15 is arranged on the presser bar 14. In the embodiment shown, the presser foot stops 15 and the presser bar strips 14 are designed in one piece. However, the plunger stop 15 may also be a separate component. The presser foot stops 15 may be constructed of the same material as the presser bar strips 14 or of another suitable material having high wear resistance or other characteristics. The presser foot stop 15 can be adjusted relative to the

presser foot

11, 12, 13. If the presser foot catch 15 is arranged on the presser bar 14, it is advantageous if the presser foot catch 15 is arranged on the selector cam plate 102 together with the presser bar 14 in an adjustable manner.

Claims

1. A knitting cam (100) for a flat knitting machine, having a needle cam plate (101) on which needle pressers (11, 12, 13) which can be moved, in particular pivoted, between an inactive position and an active position, and an associated needle presser control (20) are arranged, and having a needle selector cam plate (102), is characterized in that needle presser stops (15) for the needle pressers (11, 12, 13) are provided on the needle selector cam plate (102), against which the needle pressers rest in the active position.

2. Knitting cam according to claim 1, characterized in that a presser bar (14) is provided on the selector cam plate (102), the presser stop (15) being arranged on the presser bar (14).

3. Knitting cam according to claim 2, characterized in that the presser stop (15) is designed as a separate component which is fixed to the presser bar (14).

4. The knitting cam according to claim 2, characterized in that the presser foot stop (15) is constructed integrally with the presser bar (14).

5. The knitting cam as claimed in claim 2, characterized in that the presser foot stop (15) consists of the same or a different material than the presser bar (14).

6. The knitting cam as claimed in claim 1, characterized in that the presser foot stop (15) is adjustable relative to the needle cam plate (101).

7. Knitting cam according to claim 6, characterized in that the presser stop (15) is adjustable relative to the selector cam plate (102).

8. The knitting cam as claimed in claim 2, characterized in that the presser foot stop (15) is adjustable relative to the presser bar (14).

9. The knitting cam as claimed in claim 1, characterized in that the presser foot stop (15) is designed in one piece or in multiple pieces.

10. Weaving triangle according to claim 1, characterized in that the presser foot stop (15) has a flat or convex surface.

11. Knitting cam according to claim 1, characterized in that cams for needle jack, tuck and/or transfer are provided on the needle cam plate (101).

12. Knitting cam according to claim 1, characterized in that a member (40) for selecting needles is provided on the selector cam plate (102).

13. Weaving triangle according to claim 1, characterized in that the presser control (20) has electromagnets (21, 22, 23) and lever arms (24, 25, 26).

14. A flat knitting machine characterized in that it has a knitting cam (100) according to any of the preceding claims.